Rename "Save" Button to "Submit"

Hi there,

I'm using Sharepoint Online, and there're many workflows on our Sharepoint.  

After a form is filled, I click the "Save" button to submit. But, I prefer to click the "Submit" button, instead of the "Save" button.

I googled it, and for on-premise deployment, I can rename the "Save" button to "Submit" by modifying newForm.aspx page. But for Sharepoint Online, is there a way to rename the button?

Thank you in advance. :)